EP 1354187 A2 20031022 - PARTICLE SIZING AND CONCENTRATION SENSOR USING A HOLLOW SHAPED BEAM
Title (en)
PARTICLE SIZING AND CONCENTRATION SENSOR USING A HOLLOW SHAPED BEAM
Title (de)
TEILCHENSICHT- UND KONZENTRATIONSSENSOR MIT EINEM HOHLEN GEFORMTEN STRAHL
Title (fr)
DETECTEUR DE GRANULOMETRIE ET DE CONCENTRATION DES PARTICULES METTANT EN OEUVRE UN FAISCEAU DE FORME CREUSE
Publication
Application
Priority
- US 0146967 W 20011204
- US 25135300 P 20001204
Abstract (en)
[origin: US2002113963A1] An optical particle detection system produces an optical beam which is scattered by particles in a probe volume area. The particles may scatter the beam to the detector. The optical beam is a hollow shaped beam which may be circular/doughnut shaped, or made be of any other hollow shape. The particle passes across the beam, and those particles which pass through the center of the beam are detected as being desired particles to detect. This system may be used to detect particle concentration, and size. In addition, by producing an asymmetric beam, particle direction can also be detected.
IPC 1-7
IPC 8 full level
G01N 15/02 (2006.01)
CPC (source: EP US)
G01N 15/0205 (2013.01 - EP US); G01N 15/1456 (2013.01 - EP US); G01N 15/075 (2024.01 - EP US); G01N 2015/1027 (2024.01 - EP US); G01N 2015/145 (2013.01 - EP US)
Citation (search report)
See references of WO 02065088A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
US 2002113963 A1 20020822; US 6580503 B2 20030617; AU 2002253802 A1 20020828; CA 2436976 A1 20020822; EP 1354187 A2 20031022; WO 02065088 A2 20020822; WO 02065088 A3 20030828
DOCDB simple family (application)
US 693201 A 20011204; AU 2002253802 A 20011204; CA 2436976 A 20011204; EP 01270124 A 20011204; US 0146967 W 20011204